I love the story of the "star thrower", about a man walking on a beach after a storm, throwing starfish back into the ocean so they won't die on the shore. Someone criticizes him for wasting his time, noting there are millions of starfish, that he can't possibly throw them all back, and the few he saves won't make much difference. The man silently bends over, throws a starfish into the surf and replies, "It made a difference for that one."